628769274 has 24 divisors (see below), whose sum is σ = 1462851648. Its totient is φ = 179648280.

The previous prime is 628769269. The next prime is 628769287. The reversal of 628769274 is 472967826.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1069042 + ... + 1069629.

It is an arithmetic number, because the mean of its divisors is an integer number (60952152).

Almost surely, 2^628769274 is an apocalyptic number.

628769274 is an abundant number, since it is smaller than the sum of its proper divisors (834082374).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

628769274 is a wasteful number, since it uses less digits than its factorization.

628769274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2138690 (or 2138683 counting only the distinct ones).

The product of its digits is 2032128, while the sum is 51.

The square root of 628769274 is about 25075.2721620325. The cubic root of 628769274 is about 856.7032944381.

The spelling of 628769274 in words is "six hundred twenty-eight million, seven hundred sixty-nine thousand, two hundred seventy-four".